Osteo-rotor



March 13, 1934- w. M. MURRAY OSTEO ROTOR Filed Nov. 18. 1929 4 Sheets-Sheet 1 f/v VE/V rom- MAL m M M Moe/m Ky A TTOIF/VE x March 13, 1934. w, MURRAY OSTEO ROTOR Filed Nov. 18. 1929 4 Sheets-Sheet 2 March 13, 1934. w M, MURRAY 1,950,948

OSTEO ROTOR Filed Nov. 18, 1929 4 Sheets-Sheet 3 //v V/v roe" ML 1. MIN M Mae/m 5r r rams 5x Patented Mar. 13, 1934 UNITED STATES PATENT OFFICE OSTEO-ROTOR Calif.

Application November 18, 1929, Serial No. 407,953

39 Claims.

My invention relates to a therapeutic device for treatment of the human body by circumduction of various parts of the body and by the application of tension during the circumductory manipulation, and is a continuation of the generai subject matter disclosed in my application Serial No. 299,111, filed August 13, 1928, for combination adjusting-stretching table.

It is an object of my invention to provide a device for treatment of certain ailments by circumductorily moving certain portions of a patients body relative to adjacent portions so that the joints between these portions and also the muscles and tissues therebetween will be exercised in a beneficial manner.

A further object of the invention is to provide a device for circumduction of the human body and simultaneous exertion of tension thereon whereby to produce a tendency to elongate the tissues which are being treated.

It is a further object of the invention to provide a treating device having a primary and a secondary body-receiving flirtion, such portions being connected together by a joint, and means for producing a circumductory relative movement between the body-receiving portions of the table, together with means whereby the patient may be moved on the table to bring consecutive portions of the body into proper positions relative to the joint to accomplish treatment of these consecutive portions.

It is a further object of the invention to provide a table structure having means thereon for receiving a portion of a patients body, and a swinging structure hingedly attached to the table which Will receive another portion of the patients body, there being a simple and efficient operating device situated within the table for moving the extending structure around a longitudinal axis substantially coinciding with the longitudinal axis of the patient, this movement around a longitudinal axis being substantially circumductory in character.

A further object of the invention is to provide a treating device having a part thereof adapted for circumductory movement and mechanical means for producing the circumductory movement, which mechanical means may be adjusted to produce a desired magnitude of movement of the movable portion of the device.

It a further object of the invention to provide a device of the above character by which the circumductory movement of the swinging portion of the device may be central or eccentric with the longitudinal body axis, as may be required in the treating of various bodily ailmerits.

Further objects and advantages of the invention will be made evident throughout the following part oi"; the specification.

Referring to the drawings which are for illustrative purposes only,

Fig. 1 is an elevational view of the invention showing a patient thereon.

Fig. 2 is a plan view corresponding to Fig. 1, but Without the patient.

Fig. 3 is a diagrammatic perspective view used in explanation of the operation of my device.

Fig. 4 is an enlarged, partly sectioned elevational View showing the forward end of the device illustrated in Fig. 1, this view being taken from the opposite side of the device.

Fig. 5 is an enlarged fragmentary sectional view on a plane represented by the line 55 of Fig.4.

Fig. 6 is an enlarged vertical cross section as indicated by the line 6-6 of Fig. 4.

Fig. '7 is an enlarged vertical cross section on the plane represented by the line 7--7 of Fig. 4.

Fig. 8 is an enlarged fragmentary cross section taken on the line 8-8 of Fig. 4.

Fig. 9 is a fragmentary section on a plane represented by the line 9--9 of Fig. 8.

Fig. 10 is an enlarged fragmentary cross section on a plane represented by the line 1010 of Fig. 1.

As shown in Figs. 1 and 2, my device includes two major parts, namely, a table structure 11 and a swingable structure 12, the members 11 and 12 being designated as primary and secondary relatively swingable structures. In the drawings 13 indicates a universal joint by which the swingable structure is secured to the stationary structure 11. As shown in Fig. 6,'the universal joint 13 includes a cross bar 14 having its ends mounted in bearings 15 carried by the table or stationary structure 11, the bar 14: being held so as to rotate on a lateral horizontal axis. The downwardly depressed central por tion of the bar 14 carries a hinge pin 16 which which extends on a vertical axis. On this vertical pin 18 a triangular frame or plate 17 may swing in lateral direction, this plate 17 forming the inner end of the swingable structure 12. Since the structure 12 may swing laterally on the vertical pin 16 and vertically on the axis of the cross bar 14, it is possible to swing the structure 12 so as to describe a cone having a substantially horizontal axis, this characteristic swinging action of the structure 12 being herein referred. to as circumduction.

The swingable structure 12 includes a pair of angles 20, which extend longitudinally along the underside of the plate 17, and a round bar or shaft 21 which extends outwardly from the plate 17, the outer end of the shaft 21 projecting into a tubular member 22 which is longitudinally slidable upon the shaft 21 and forms the outer extremity of the swingable structure.

The tubular member 22, as shown best in Figs. 4 and 7, has a secondary traveler 23 mounted thereon, this traveler 23 consisting of cooperating halves 24 which bolt together so as to enclose the member 22 by cylindrical walls 25 and so as to include in an upper hollow casing 26 a worm 27 and a gear 28 driven by the worm 27, this gear 28 being mounted on a longitudinal bar 29 which carries a cross frame 31 at its forward end and a washer or plate 32 at its rearward end, there being a compression spring 33 operating against the washer 32 so as to force the bar 29 in rearward direction. A lower longitudinal rib 34 and an upper longitudinal rack 35 of the tubular member 22 serve as guides for holding the traveler 23 in upright or substantially vertical position. As shown in Fig. 4, a pair of gears 36 and 37 engages the rack 35, one of these gears being mounted on an extending shaft 38 on which a hand-wheel 39 is placed for rotation of the gear 37 whereby to cause the traveler 23 to move along the member 22. A latch or stop 41 is hinged at 42 to the traveler 23 and is provided with a lower toothed end 43 for engaging the teeth of the rack 35 and a handle 44 by which the member 41 may be released from engagement with the rack 35.

An operating bar 45, as shown in Figs. 4 and 6, extends diagonally downwardly from the under face of the plate 17, being formed of a pair of angles 46 and being suitably braced by angles 47. The operating arm 45 extends diagonally downwardly into the interior of the table structure 11, and the inner or lower extremity 48 thereof is engaged by an operating means 49 by which the inner end' 48 of the operating arm 45 may be rotated relative to an axis extending through the universal joint 13, thereby producing circumduction of the operating arm 45 and likewise circumduction of the swingable structure 12 'to which the operating arm 45 is attached.

As shown in Fig. 4, the operating means 49 includes a reversible variable speed motor 51 from which a belt 52 extends to the drive pulley 53 of a reducing gear box 54 which contains a reducing gear set for driving the power delivery shaft 55 thereof at a reduced speed. As shown in Figs. 4 and 8, the power shaft 55 carries a rotatable body 57 having lateral projections 58 which are bored to receive a shaft 59, this shaft 59 carrying a worm 60 and a spur gear 61. To the upper portion of the body 57, so as to enclose the worm 68, a casing 62 is secured by some suitable means such as cap screws 63. The upper portion 64 of the casing 62 is curved to form a segment and is provided with inwardly faced channels 65 in which a block 66 is slidable. The block 66 has gear teeth 67 formed on the lower face thereof for engagement by the worm 60 so that byrotation of the worm the block 66 may be moved in the segmental slides or channels 65. A crank pin 68 extends upwardly" from the inner end of the block 66, the head 70 thereof being enclosed by a socket portion 71 of a fixture 72. The upper portion of the fixture 72 carries a laterally extending pin or bolt 73 adapted to engage the inner end 48 of the operating arm 45. The cooperation between the crank pin 68, the fixture 72, and the end 48 forms a flexible universal coupling connecting the crank pin 68 with the inner end 48 of the operating arm 45.

The body 57 carries an upper gear '75 and a lower gear 76 which are bolted together so as to act as a unitary member, these gears being rotatably mounted on the body 57. The gear has a peripheral flange '77 carrying teeth 78 adapted to engage the gear 61 on the shaft 59 which carries the worm 60, and the gear 76 has a downwardly projecting peripheral flange 80 provided with gear teeth 81 which are engaged by a gear 82 carried on a shaft 83 which projects through the front wall 84 of the table structure 11 and has a hand-wheel 85 mounted thereon. The shaft 83 is carried by a suitable bearing structure such as indicated at 86. A mechanical brake is provided for the shaft 83, this brake consisting of a grooved pulley 8'7 and a brake shoe 88 adapted to engage the groove of the pulley 87. The brake shoe 88 is carried on a swingable arm 90 and is moved into frictional engagement with the pulley 87 by rotating a handle 91 mounted on a shaft 92 which projects through the wall 84 of the table structure 11 and has an arm 93 on its inner end for engaging a loop 94 at the upper end of the lever member 90.

The power shaft 55 of the gear box 54, the body 57, and the segment 64 are centralized on an axis 0-0 which extends through the center point of the universal joint 13. In Fig. 4, the crank pin 68 is shown in centralized position; in other words, when the operating means 49 is rotated, the crank pin 68 will axiailyrevolve on the axis CC, with the result that there will be no movement of the ner end 48 of the operating arm 45. By rota%i ng the worm 69, the slide block 66 may be caused to move toward the position in which it is shown in dotted lines 95 in Fig. 4, such movement causing the crank pin 68 to become eccentric to the axis of rotation CC, with the result that as the segment 64 is rotated, the inner'end 48 of the operating arm 45 will be caused to travel through a circular orbit. In the diagrammatic detail, Fig. 3, I have indicated the operating arm 45 diagrammatically as a single line and have also by a single line indicated the movable structure 12. The members 45 and 12, being rigidly secured together, pivot on the center point of the universal joint 13. When the inner end 48 of the operating arm 45 is caused to describe a circular orbit 9'7, the extremity 98 of the structure 12 will be caused to swing in opposite direction of movement through a circular orbit 99, this rotation of a portion of the swingable member 12 while the inner end thereof is held to coincide with the center of the universal joint '13 resulting in the member 12 transcribing a cone 100 or what is termed circumductory motion or circumduction of the member 12.

The movement of the crank pin 68 into a desired eccentric position is accomplished by holding the gears 75 and '76 stationary so that as the operating means 49 rotates, the gear 61 will roll along the teeth '78 of the upper gear 75, thereby producing rotation of the shaft 59 and the worm 60. During ordinary operation of the device, the gears 75 and 76 rotate with the opcrating means 49, the engagement of the gear '76 with the gear 32 producing a continuous rotation of the shaft 83 and the wheel-like handle 85. When it is desired to stop rotation of the gears '75 and 76, a retarding or stopping efiect is applied to the shaft 83 so as to tend to hold the gear 82 against rotation. This may be accomplished either by manually grasping the handwheel 85 or by causing the brake shoe 88 to frictionally engage the pulley member 87, which, as previously explained, may be accomplished by movement of the handle 91. Therefore, to move the crank pin 68 from centralized position to eccentric position, the motor is started in forward direction by manipulation of the motor switch control handle 102. The rotation of the shaft 83 is then retarded or stopped, this resulting in a rotation of the worm 60 and movement of the slide member 66 outwardly in the curved segment 64. As the crank pin 68 moves outwardly from centralized position, the swingable member 12 will start to circumduct, and the cone of circumduction will increase in accordance with the movement of the crank pin 68 toward its extreme eccentric position. When it is desired to return the member 12 to centralized position, such as shown in full lines in Figs. 1 and 4, the motor 51 is reversed so as to cause reverse rotation of the operating means 49. At this time the shaft 33 is stopped or retarded, with the result that the worm 60 will be rotated in relatively reverse direction and will cause movement of the slide member 66 back toward such position that the crank pin 68 will be centralized with the axis CC. The worm may also be rotated in another manner. The operating means 49 may be held stationary and the gears and '76 rotated relative thereto as a result of manual rotation of the hand-wheel 85.

A simple and important feature of the invention resides in the mechanism I employ for changing the eccentricity of the crank pin 68 while the machine is in operation. Although I have shown a retarding means for the gear 75, consisting of an arrangement of gears 76 and 82 and an extending handle 85-, these parts '16, 82, and 35 may be eliminated and a frictional brake applied directly to the gear 75 so as to retard or stop the gear 75 and to thereby produce a relative rotation between the gears 61 and 75.

In one use of the osteo-rotor, a patient may be placed face downward with the upper portion of the body resting on the forward cushion 111 with which the top of the stationary or table structure 11 is equipped. The limbs of the patient are supported on a pad or divided cushion 112 which is carried by the shaft or bar 21 and a cushion 113 which is detachably secured to the triangular plate 17 of the movable structure 12. The cushion 113 in most instances need not be employed. The patient 110 is so placed upon the cushions 111, 112, and 113 that the portion of the anatomy on which the treatment is to be concentrated is substantially above the center of the universal joint 13. In the illustration, Fig. 1, the patient 110 is placed in a position suitable for treatment of the sacro-iliac region 115 where the spine joins the sacrum. A tension harness 118 is applied to the ankles of the patient, and from this tension harness connectors 119 are extended to the cross bar 32 of the traveler 23, and similar harness means 120 are secured to the lwrists of the patient, the harness means 120 being connected through members 121 with a primary traveler 122 and having handle portions 123 which may be gripped by the hands of the patient. The members 23 and 122 constitute upwardly extended posts to which the body tensioning devices may be attached. The traveler 122 includes, as shown in Figs. 1 and 10, a vertical bar 125 having cross bars 126 and 127 at its upper end and having a threaded body 128 at its lower end through which an adjustment screw 130 extends. The vertical bar 125 projects through a slot 131 in the top 132 of the table structure 11 and may be longitudinally moved between cushions 133 by rotating the screw 130, which is accomplished by turning a handle 135 secured on the projecting end 136 of the screw 130. The torso of the patient adjacent to the point of fulcrum or adjacent to the universal joint 13 is constrained from lateral movement by primary and secondary restraining members 140 and 141, these restraining members being provided in cooperating pairs, as may be clearly seen in Fig. 2.

The construction of the restraining members may be determined from the enlarged detail of the members 141 shown in Fig. 5. The members 141 are each arcuated and are provided with hinges 143 at their lower ends whereby they may be attached to adjustment plates 144 which are received on a perforated bottom plate 145, the plates 144 having pins which project into the perforations of the plate 145. From hinge members 146 situated on the backs of the members 141, diagonal bracing bars 14'? extend downwardly so as to engage the perforations in the bottom plate 145. The members 141 may be moved inwardly and outwardly in accordance with the size of the body and adjusted relative to the body by moving the plates 144 to desired positions and then causing the bracing bars 147 to engage the bottom plate at such points that the members 141 will be held tightly against the body of the patient, thereby restraining the body from lateral movement during circurnduction of the movable member 12.

In placing the patient in a desired position for treatment, the primary traveler 122 is moved in rightward direction by use of the screw 130 to produce a tension in the arms, and if desired, a head harness may also be employed whereby to produce tension in the spine and neck. The secondary traveler 23 is then moved in leftward direction so as to exert a pull on the limbs of the patient, this pull being accompanied by a movement of the bar 29 into a position such as indicated by dotted lines 150, the pulling force on the limbs being accom plished by the compression spring 33. The motor 51 is then started and circumduction of the member 12 produced in the manner previously described, this circumductory movement of the member 12 causing a similar circumduction or" the lower portion of the patients body relative to the upper portion, the relative circumduction being centralized or concentrated substantially in that portion of the body above the universal joint 13. The conical rotary movement combined with tension has been found very effectual in curing sacro-iliac lesions and also in normalizing hip and leg muscles so as to reestablish a normal activity of both sides of the lower portion of the body.

From the position shown in Fig. 1, the patient may be moved outwardly or leftwardly by first moving the traveler 122 a short distance in leftward direction and then moving the traveler 23 leftwardly, thus causing the patients body to be moved a similar short distance in leftward direction and bringing a consecutive portion of the anatomy into position for treatment. In this manner, the patient may be first placed to treat the pelvic regions, and then by consecutive or progressive movement the treatment may be caused to traverse the lumbar, thoracic, and cervical regions.

In addition to circumduction of the spine, my device also produces a beneficial exercising of the muscles and tissues of the body so as to produce a normalization thereof. It is now generally conceded that many ailments result from spinal subluxations which are produced by abduction of one or more vertebrae. The normalizing of the muscular structure adjacent to subluxated vertebrae produces an equalizing of the muscular support of the subluxated vertebrae, with the result of the normalizing action contributing to the adduction of the subluxated vertebrae. Where the muscular structure on one side of the patients body is greatly contracted, as found in spinal curvature, my device provides means for holding the patient in an eccentric position relative to the axis of circumduction of the device, thereby producing a greater tension on one side of the body than on the other so as to normalize the muscular condition. This means for holding the body eccentric resides in the constraining or restraining members 140 and 141 which may be positioned to one side or the other of the longitudinal axis of the device.

The patient may be placed in various positions on the device, depending upon the treatment. In Fig. 1 I have shown the patient in face downward position, but it will be recognized that there are many instances when it is desired to have the patient lie on his back or on one side, and in some instances the upper portion of the body may be supported on the swingable structure 12, the lower portion then being received on the table structure 11. When the patient is lying face downward on the device, as shown in Fig. 1, the axis of the spine is raised relative to the axis of circuinduction of the device.

In order to prevent too great a tension being exerted when the outer end of the structure 12 is downwardly, I provide an automatic compensating device 160 which moves the tubular member 22 inwardly and outwardly on the shaft 21 as the structure 12 swung upwardly and dovmwardly. This compensating device, as shown in Figs. 4 and 6, includes a vertical bar 170 having a yoke 171 formed at its upper end so that it may be attached to the bar 14in a position straddling the lower end of the vertical pin 16. The bar 170 projects downwardly through a plate 172 secured to the angles 46 from which the operating arm 45 is constructed, there being u: iversal joint 173 at the lower end thereof which attaches to a lower bar 174 which is slidable in a tubular member 175, this tubular member 175 having its lower end hinged at 176 to the lower portions of bars 177 which extend downwardly from the upper forward corners of the table 11 in Vfcrm, as shown, these bars 177 defining a V -shaped opening 178 at the forward end of the table 11 through which the operating bar 45 and the compensating mechanism 160 may project. The compensating mechanism 160 further includes a vertical post member 180 which projects downwardly from the forward end of the plate 17 and is reinforced by a substantially horizontal strut 181, as shown in Fig. 4. A fulcrum bar 182 is hinged to a pin 183 carried at the lower end of the post 180, the upper portion 184 of the fulcrum bar 182 being connected to the tubular member 22 by means of a push rod 184a having clevises on the ends thereof, as indicated at 185, and the lower portion 186 of the fulcrum bar 182 being threaded and connected to the upper portion of the bar 174 by means of a connecting rod 187. The inner end of the connecting rod 187 is provided with a clevis 188 which makes pivotal attachment with a ring member 190 which is held in a position surrounding the upper portion of the bar 174 by a collar 191, and the outer end of the connecting rod 187 is equipped with a clevis 192 which is pivotally attached to a ring member 193 which is supported upon a nut 194 adapted to traverse the lower threaded portion 186 of the fulcrum bar 182.

Illustrative of the action of the compensating means 160, the movable structure 12 is shown in an upwardly sloped position by dotted lines 200, this upwardly sloped position being assumed when the crank pin 68 is in the posi tion indicated by dotted lines 201. As the member 12 moves above a horizontal plane, the con necting rod 187 will pull the lower end of the fulcrum bar 182 relatively inwardly with respect to the post 180, with the result that the upper portion 184 of the fulcrum bar will move relatively outwardly toward the position indicated by dotted lines 202, thereby causing the rod 1840; to move the member 22 outwardly. As the movable structure 12 swings below the horizontal plane, the action of the fulcrum bar 182 is to move the member 22 inwardly on the shaft 21.

By use of the compensating means 160 the tension exerted on the patients body may be kept substantially constant, or by moving the nut 194 upwardly or downwardly on the threaded portion 186 greater tension may be exerted above or below the horizontal plane. The axis of circumduction of the device is a horizontal longitudinal line extending through the center of the universal joint 13. The compensating device 166 may be employed to raise the effective axis of circumduction to coincide with a desired axis of circumduction extending through the body of a patient resting on the device. When the patient is in face downward position, as shown in Fig. 1, the true axis of circumduction of the pelvic and lumbar regions extends substantially through the spine and is therefore eight to ten inches above the actual universal joint 13 of the device. The compensating device 160, however, by producing a relatively inward movement of the member 22 and likewise the traveler 23 during the downward motion of the swingable structure 12 and a relatively outward movement of these parts during the upward motion of the movable member 12, approximately aligns the circumductory action of the device with the pelvic and. lumbar regions which are being treated when the patient is in the position shown in Fig. 1.

Although I have herein shown a simple and practical embodiment of my invention, it is recognized that certain parts or elements thereof are representative of other parts, elements, or mechanisms which may be employed in substantially the same manner to accomplish substantially the same results; therefore, it is to be understood that the invention is not to be limited to the details disclosed herein but shall have the scope of the following claims.

I claim as my invention:

1. A treating device of the character described, including: a primary structure and a secondary structure, adapted to support a patient; a joint connecting said structures together so that one structure may be swung relative to the other; means for mechanically producing relative movement of said structures; and means for moving said patient on said structures so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

2. A treating device of the character described, including: a primary structure and a secondary structure each having parts thereon for supporting a patient; a joint connecting said structures together so that one structure may be moved relative to the other in a manner to produce circumduction of the patient; power operated means for producing such movement and means for moving said patient relative to said joint so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

3. A treating device of the character described, including: a primary structure and a secondary structure, adapted to support a patient; a joint connecting said structures together so that'one structure may be swung relative to the other; means for mechanically producing such relative movement of said structures as will produce circumduction of one portion of the body of said patient relative to another portion of the patients body; and means for moving said patient on said structures during said relative movement of said structures so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

4. A treating device of the character described, including: a primary structure and a secondary structure each having parts thereon for supporting a patient; a joint connecting said structures together so that one structure may be swung realtive to the other; and means for exerting a tension on the patient, said tension exerting means being movable during the relative swinging of said structures so as to move said patient relative to said joint so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

5. A treating device of the character described, including: a primary structure and a secondary structure, adapted to support a patient; a joint connecting said structures together so that one structure may be swung relative to the other; means for mechanically producing relative movement of said structures; means for exerting a tension on the patient; means for moving said patient on said structures so as to bring consecutive parts of the body of said patient into treating position relative to said joint and means for restraining movement of the hips of said patient relative to said primary structure.

6. A treating device of the character described, including: a primary structure and a secondary structure, adapted to support a patient; a joint connecting said structures together so that one structure may be swung relative to the other; means for mechanically producing such relative movement of said structures as will produce circumduction of one portion of the body of said patient relative to another portion of the patients body; means for exerting a tension on the patient; and means for moving said patient on said structures so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

7. A treating device of the character described, including: a body support for a patient, having primary and secondary portions, said portions being adapted for relative movement around an axis extended longitudinally with respect to the body of the patient; power means for producing relative rotation of said primary and secondary portions with respect to a longitudinal axis; means for exerting a tension on the patient; and means for moving said patient on said body support during operation of the treating device whereby to subject various parts of the patients body to treatment.

8. A treating device of the character described, including: a body support for a patient, having primary and secondary portions, said portions being adapted for relative rotary movement around an axis extended longitudinally with respect to the body of the patient; means for exerting a tension on the patient; and means for holding said patient in laterally oifset position on said body support whereby to subject various parts of the patients body to circumduction.

9. A treating device of the character described, including: a body support for a patient, having primary and secondary portions so joined that they may move in circumductory relationship; means for producing relative rotary movement of said primary and secondary portions so as to produce circumduction of a body; and constraining members for holding said patient eocentric with respect to the axis of circumduction of said device whereby to concentrate treatment at one side of the patient.

10. A treating device of the character described, including: a body support for a patient, having primary and secondary portions; means for producing relative rotary movement of said primary and secondary portions; and means for exerting tension in the body of the patient, said tension exerting means having a part capable of adjustment whereby the tension may be increased through a selected are of the relative rotary movement of said primary and secondary portions of said body support.

11. A treating device of the character described, including: a table having body supports; a movable supporting structure cooperative with said table; an operating arm projecting from said movable structure into the interior of said table; and operating mechanism within said table having engagement with said operating arm for causing said movable structure to move around a longitudinal axis, said operating mechanism including a rotary member, a crank pin movably mounted on said rotary member, and means for changing the eccentricity of said crank pin.

12. A treating device of the character described, including: a table having body supports; a movable supporting structure cooperative with said table; an operating arm projecting from said movable structure into the interior of said table; operating mechanism within said table having engagement with said operating arm for causing said movable structure to move around a longitudinal axis; a tension exerting member longitudinally movable on said movable structure; and means for moving said tension'exert ing member on said movable structure as said movable structure is moved in a manner to produce circumduction of the body of said patient, whereby effectively to raise or lower the axis of circumduction.

13. A treating device of the character described, including: a table having body supports; a movable supporting structure cooperative with said table; operating means within said table for causing said movable structure to move around a longitudinal axis; a primary traveler longitudinally movable on said table; a secondary traveler longitudinally movable on said movable structure; and members extending from said travelers to a patient for exerting tension in the body of the patient.

14. A treating device of the character described, including: a table having body supports; a movable supporting structure cooperative with said table; power operated means within said table for causing said movable structure to move back and forth relative to the longitudinal axis of' the treating device; and constraining means for holding a part of the patients body from movement in a plane normal to said longitudinal axis, said means being laterally adjustable to ofiset said part of the patients body relative to said longitudinal axis.

15. A treating device of the character described, including: a body support for a patient, having primary and secondary portions; means for producing relative rotary movement of said primary and secondary portions; and means on each of said portions of said body support for exerting tension in the body of the patient, said tension exerting means each having a part capable of adjustment whereby the tension may be varied during the rotary movement of said primary and secondary portions of said body support.

' 16. A treating device of the character described, including: a body support for a patient,

. having primary and secondary portions connected together by a universal joint; a rotary device rotatable on an axis extending through the center of said universal joint and including an arcuate slide carrying a crank therein movable relative to the rotary device; means connecting said crank to one of said portions of said body support; and means for moving said crank in said arcuate slide while said rotary device is in motion whereby to vary the movement transmitted through said connecting means.

17. A treating device of the character described, including: a body support for a patient, having primary and secondary portions, said portions being adapted for circumductory movement around an axis extending longitudinally with respect to the body of the patient; and means for exerting a tension on the patient, said means including a part adapted to be rotated on an axis substantially parallel to'said longitudinal axis for producing torsion in the body of the patient.

'18. A treating device of the character described, including: a body support for a patient, having primary and secondary portions adapted for relative swinging movement whereby to flex the body of a patient placed thereon; and means for exerting tension in the body of the patient, said means including parts 'for automatically varying the tension as the primary and secondary portions relatively swing from one position to another.

19. A treating device of the character described, including: a body support for a patient, having primary and secondary portions adapted for relative swinging movement whereby to flex the body of a patient placed thereon; and yield F able means for yieldingly placing tension in the body or the patient.

20. A treating device of the character described, including: a table having body supports; a movable body-engaging structure movably connected to said table and adapted to be moved relative thereto; tension exerting means mounted on said table and adapted to be secured to the body of the patient; and a second tension exerting means mounted on said movable structure, said second tension exertin means having parts adjustable to vary the tension While said movable structure is in motion.

21. A treating device of the character described, including: a primary structure and a secondary structure, adapted to support a patient; a joint connecting said structures together so that one structure may be swung relative to the other; and means for moving said patient longitudinally on said structures so as to bring consecutive parts of the body of said patient into treating position relative to said joint.

22. A treating device of the character described, including: a primary structure and a secondary structure having parts thereon for supporting a patient; and a joint connecting said structures together for relative movement about a pivot point disposed in a plane between said structures, there being means adjustable to vary the position of said pivot point relative to the body of the patient.

23. A treating device of the character described, including: a primary structure and a secondary structure having parts thereon for supporting a patient; a joint connecting said structures together for relative movement about a pivot point disposed in a plane between said structures; and means for producing relative longitudinal movement of said primary and secondary structures during the relative swinging movement thereof whereby to control the position of the pivot point-relative to the body of the patient.

24. A treating device of the character described, including: a primary structure and a secondary structure having parts thereon for supporting a patient; a joint connecting said structures together for relative movement about a pivot point disposed in a plane between said structures; and body restraining means adjacent said pivot point for preventing lateral movement of the portion of the patients body at said pivot point but permitting longitudinal move- I ment of the patients body.

25. A treating device of the character described, including: a primary structure and a secondary structure having parts thereon for supporting a patient; a joint connecting said structures together for relative movement about a pivot point disposed in a plane between said structures; and means for holding said patient in laterally offset position relative to said pivot point.

' 26. A treating device of the character described, including: a primary structure and a secondary structure having parts thereon for supporting a patient; a joint connecting said structures together for relative movement about a pivot point disposed in a plane between said structures; means for exerting tension on the patient; and means for holding said patient in laterally offset position relative to said pivot point.

27. A treating device of the character described, including: a table having body supports; a movable supporting structure movably connected to said table; a primary traveler longitudinally movable on said table; a secondary traveler longitudinally movable on said movable structure; and members extending from said travelers to a patient for exerting tension in the body of the patient.

28. A treating device of the character described, including: a table having body supports; a movable supporting structure nlovably connected to said table; a primary traveler longitudinally movable on said table; a secondary traveler longitudinally movable on said movable structure; and resilient means connecting said travelers to a patient for exerting tension in the body of the patient.

29. A treating device of the character described, including: a body support for a patient, having primary and secondary portions mov ably connected so that relative movement thereof will produce a fiexure of the body of the patient; and means for exerting tension in the body of the patient, said tension exerting means having a part capable of adjustment whereby the tension may be varied during the movement of said primary and secondary portions of said body support.

30. A treating device of the character described, including: a body support for a patient, having primary and secondary portions, said portions being connected for lateral movement relative to a longitudinal axis; and means for exerting a tension on the patient, said means including a part adapted to be rotated on an axis substantially parallel to said longitudinal axis for producing torsion in the body of the patient.

31. A treating device of the character described, including: a body support for a patient, having primary and secondary portions connected together by a universal joint; a rotary device; a lateral screw on said rotary device; a crank movable by said screw; rotatable means external of said rotary device, connected to said screw so as to produce rotation of said screw when such rotatable means is held stationary, said rotatable means normally rotating in consequence of rotation of said rotary device; and means connecting said crank to one of said portions of said body support to produce movement thereof.

32. A body treating table comprising a main table structure, an extension connected thereto, said extension having a plurality of relatively slidable parts, means to give the extension an orbital movement in reference to the table, andv means operative at the same time to give a reciprocating motion to the sliding parts of said extension.

33. A body treating table comprising a main table, an extension pivotally connected thereto, said extension having relatively slidable part means on the table and on the extension to engage a persons arms and legs, means to move the extension in an orbital movement, means to vary the extent of such movement, and means operative at the same time to reciprocate the sliding parts of the extension.

34. A body treating table having a main table structure with an extension arm connected thereto by a universal joint, and means on said arm to support part of the body, a control mechanism below said main table structure having a rotatable shaft, a downward extension from the arm, and means interconnecting said down ward extension and the shaft to convey an orbital movement around the longitudinal axis of the table to the extension arm and to vary the extent of such movement.

35. A body treating table comprising a main table, an extension arm connected thereto by a universal joint, means on the extension arm to support part of a body, a downward extension from said extension arm, a supporting mechanism below said main table, said supporting mechanism comprising a drive shaft having a yoke mounted thereon, a screw in said yoke, a connection between said screw and the down ward extension whereby said extension arm is given an orbital movement by the rotation of the shaft, and means to operate the screw to vary the size of such movement.

so. A treating device of the character described adapted for use with body attachment means, including: a supporting structure; a movable arm extending from said supporting structure; a pedestal movably secured to said extending arm; means for moving said pedestal relative to said arm; and means carriedby said arm for engagement of said attachment means.

37. A treating device of the character described, including: a body support for a patient, having primary and secondary portions connected together by a universal joint; a rotary device; a lateral screw on said rotary device; a crank movable by said screw; a rotatable member in rotatable relation to said rotary device, connected to said screw so as to produce rotation of said screw when such rotatable member is held stationary, said rotatable member normally rotating in consequence of rotation of said rotary device; means for resisting rotation of said rotatable member; and means connecting said crank to one of said portions of said body support to produce movement thereof.

38. A body treating table having a main table structure with an extension arm connected thereto by a universal joint, and means on said arm to support part of the body, a control mechanism having a rotatable shaft, a downward extension from the arm, and means interconnecting said downward extension and the shaft to convey an orbital movement around the longitudinal axis of the table to the extension arm and to vary the extent of such movement.

39. A body treating table comprising a main table, an extension arm connected thereto by a universal joint, means on the extension arm to support part of a body, a downward extension from said extension arm, a drive shaft having a yoke mounted thereon, a screw in said yoke, a connection between said screw and the downward extension whereby said extension arm is given an orbital movement by the rotation of the shaft, and means to operate the screw to vary the size of such movement.

WILLIAM M. MURRAY. 

